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28 items found (Showing 1 - 10)
  1. Notebook with various page numbered sections, illustrated  
  2. 1982-01-01 This publication resulted from a symposium held at the American Society of Agronomy and Soil Science Society of America in August 1979. Although the manuscripts focus on soil erosion and conservation in the tropics, works also can apply to many parts of the world.  
  3. 1991-01-01 This publication reviewed the various milk production systems in the tropical areas (humid and dry) accoring to agro-climatic and technical, exonomical and sociological conditions including special situations like peri-urban production systems. It also reviewed new knowledge in ruminat digestion...  
  4. 1993-12-19 More information about using Moringa seeds for water treatment.  
  5. Key Resource 1996-01-01 This is a book of practical ideas. It is written for people who help those who live and make their living under difficult conditions in the tropics and subtropics. What should a development worker do to assist a community? There are no simple answers, but there are many possibilities—plants,...  
  6. 1996-07-19 Solar water disinfection can be used to reduce bacteria counts in small volumes of drinking water at the individual household level.  
  7. 2000-06-20 A report on the work of Nikolaus and Gabriele Foidl with Moringa in Nicaragua.  
  8. 2001-07-20 After the publication of our article on clay water filters (EDN71-4), we were questioned about the safety of colloidal silver.  
  9. 2004-04-20 Filtering water through old clothes can effectively remove many of the copepods (a type of zooplankton) that carry cholera-causing bacteria. Researchers from the University of Maryland, College Park, did a study in Bangladesh comparing the effectiveness of old saris and nylon filters for...  
  10. 2005-07-20 “Gray water” (also “grey water,” “graywater” or “greywater”) is the term used to describe wastewater from dish washing, laundry, bathing, and rinsing. (Note: the term gray water does not refer to toilet waste, which is often called “black water.”) Although gray water does not need extensive...